I'm trying to increase my collection of American and Canadian traditional folk music. I'm thinking work songs from canal-building, mining, field-work, fishing, railroads, etc, or ballads set in New England, the South, the Canadian Maritimes or the American or Canadian West, or songs from the US Revolutionary or Civil Wars, or Expulsion of the Acadians.

My two go-to sources are the Roud Index at https://archives.vwml.org/search/advanced:combined/0_50/all/t_raw_asc/_%E2%B8%9EeyJ0IjpbeyJxdWVyeSI6Ik5ldyBFbmdsYW5kIiwibW9kZSI6InBocmFzZSIsImZpZWxkcyI6WyJBTEwiXX1dLCJtIjoiT1IiLCJhdCI6InNpbmdsZVtzb25nSW5kZXhdIn0%3D and Mainly Norfolk at https://www.mainlynorfolk.info/folk/ But both of them are mainly songs originating in England, Ireland and Scotland.

But the dates most of their material was collected were the 18th and 19th centuries which were very active periods in North America, so surely we (Canadians and Americans) had lots of our own folk music?
Where can I find an index or database similar to Roud or Mainly Norfolk but with mostly Canadian and American traditional music?